Dr Tony Redmond

Dr Tony Redmond

Senior Lecturer, Deputy Director of Postgraduate Research

School of Optometry and Vision Sciences

Email:
redmondt1@cardiff.ac.uk
Telephone:
+44(0)29 2087 0564
Fax:
+44(0)29 2087 4859

Research overview

My main research interests are in basic and clinical psychophysics. Research in my lab is mainly aimed at gaining a better understanding of the functional architecture of the visual system, and how it is altered in neurodegenerative disorders. I am also interested in using this knowledge to inform the design of accurate and precise clinical tools for identifying the earliest deficits of visual perception in these disorders.

Teaching overview

I lead the Master of Research (MRes) in Vision Sciences programme at the University, as well as the MSc research project module.

I am also leader of the Physiology of Vision module, which is currently taught to 1st year Optometry students. In this module, I teach students (through lectures and practical classes) about how the intricate structure of the retina and higher visual areas allow us to see and perceive the world.

Educational and professional qualifications

2014FHEA, Postgraduate Certificate in University Teaching and Learning (PCUTL)
Higher Education Academy / Cardiff University
2009PhD, 'Spatial summation and the structure/function relationship with age and in glaucoma' 
University of Ulster / Moorfields Eye Hospital
2005Member of the College of Optometrists (MCOptom)
The College of Optometrists
2004                    BSc (Hons) Optometry
University of Ulster

Academic positions

2015 - PresentSenior Lecturer, School of Optometry & Vision Sciences, Cardiff University
2012 - 2015Lecturer, School of Optometry & Vision Sciences, Cardiff University
2011 - 2012Research Fellow, Dalhousie University, Halifax, Canada
(PH Artes & BC Chauhan)
2009 - 2011Post-doctoral research fellow, UCL Institute of Ophthalmology, London
(SC Dakin & DF Garway-Heath)

Other positions

2010 - 2011    Specialist optometrist (glaucoma, PT), Moorfields Eye Hospital, London

2006 - 2008

Sessional optometrist (PT), Moorfields Eye Hospital, London
2005Locum optometrist, private practice
2004 - 2005Pre-registration optometrist, Moorfields Eye Hospital, London

School and University roles and committees

2015 - PresentMRes Programme Lead
2014 - PresentDeputy Director of Postgraduate Research                                          

External committees

2015 - PresentEditorial Board Member, Optometry in Practice
2009 - 2010Chair of the North London Association of Optometrists
2007 - 2010Committee member of the North London Association of Optometrists


External links

View my full CV

View my neurotree

Honours and awards

  • 2010     George Giles Prize for Postgraduate Research Excellence, The College of Optometrists

Professional memberships

  • Registered with the General Optical Council (Reg. no.: 01-21700)
  • Member of the College of Optometrists (MCOptom)

Research

My main research interests are in basic and clinical psychophysics. Research in my lab is mainly aimed at gaining a better understanding of the functional architecture of the visual system, and how it is altered in neurodegenerative disorders. I am also interested in using this knowledge to inform the design of accurate and precise clinical tools for identifying the earliest deficits of visual perception in these disorders.

Deficits of visual perception with age and disease

We have investigated changes in spatial summation with age and in early glaucoma. Two papers by our group, published side-by-side in Investigative Ophthalmology and Visual Science showed that although spatial summation is unchanged with advancing age, a loss of sensitivity (to a small spot of light varying in brightness) in early glaucoma can be accounted for by an enlargement of the area of complete spatial summation (Ricco's area). More recent work by our group has shown that temporal summation is also altered in glaucoma. Taken together, these findings have direct implications for the design of accurate clinical tests for measuring early visual field deficits in glaucoma.

Addressing the limitations of conventional visual field tests

Some recent work has focussed on characterising response variability to visual field stimuli with psychometric functions (Figure 2) and exploring ways in which variability can be minimized to improve the detection of subtle vision loss over time. I am also interested in how clinical measures of vision are affected by non-neural changes in the eye that occur with age or eye disease (e.g. increased intraocular straylight, crystalline lens yellowing).

Brain imaging

We use fMRI and psychophysics to study reorganisation in the human visual cortex in glaucoma, with colleagues in the Cardiff University Brain Research Imaging Centre (CUBRIC). This work is generously funded by Fight for Sight, the Eye Research Charity.

In vivo cone imaging

We have been undertaking a series of experiments in which cones are imaged in vivo using clinical instrumentation. Initial findings have recently been published in the journal Ophthalmology.

Visual acuity

Clinical visual acuity tests are quick and simple to perform, but the results can be highly variable, making them rather insensitive to subtle changes in vision that occur over time or in response to treatment. One contributing factor is the wide variation in optotype legibility. In a recent study, we showed how 'vanishing optotype acuity' (acuity measured with pseudo-high-pass optotypes) is more uniform across letters than acuity to conventional letters. Vanishing optotypes can be seen in Figure 3.

Financial support and awards

Macular Society PhD Studentship. PI: PJ Mulholland, Co-applicants: RS Anderson, T Redmond, DF Garway-Heath, M Crossland£100,000
Fight for Sight PhD Studentship. PI: T Redmond, Co-applicant: KD Singh. Collaborators: JE Morgan, SK Rushton, FA Ennis, 2016-2019£100,000
British Council, Newton Fund. PI: AJ Quantock, Co-applicants: T Redmond, M Votruba, 2016£35,000
The College of Optometrists Research Fellowship, 2013-16£27,494
The College of Optometrists Postgraduate Scholarship, 2013-16£55,878
The College of Optometrists Summer Scholarship, 2013£2,000
The Wellcome Trust Biomedical Vacation Scholarship, 2013£1,440
Travel grant; oral presentation award (1st prize) at 23rd Annual Dalhousie University Ophthalmology Research Meeting, Halifax, CanadaCAD$750
Fight for Sight Dr Hans and Mrs Gertrude Hirsch Award'Determining patient-specific baseline ganglion cell density using  in vivo imaging of the retinal cone mosaic in glaucoma'.Lead applicant: T Redmond. Co-applicant: RS Anderson. Collaborators: R Malik, DF Garway-Heath, SC Dakin, 2011-12.£12,200
George Giles Prize for Postgraduate Research Excellence (College of Optometrists), 2010£500
iPro Practice-based research grant, College of Optometrists,'Assessment of Optic Disc Photographs for Glaucoma by UK optometrists'.Lead applicant: SE Hadwin. Co-applicants: T Redmond, DF Garway-Heath, RS Anderson, 2010-11£9,901
Research excellence oral presentation award, College of Optometrists Research Symposium, York, UK, 2010£200
Travel grant, (HPSS R&D N. Ireland, Recognised Research Group for Vision) for attendance at ARVO 2009, Ft. Lauderdale, USA£600
Travel grant, College of Optometrists for attendance at ARVO 2009, Ft. Lauderdale, USA£400
World Glaucoma Congress poster presentation award (2nd place), Boston, USA, 2009 
Training Grant, (HPSS R&D N. Ireland, Recognised Research Group for Vision) for attendance at 'Matlab programming for Cambridge Research Systems equipment', Durham University, 2009£575
Travel grant, (HPSS R&D N. Ireland Recognised Research Group for Vision) for attendance at ARVO 2008, Ft. Lauderdale, USA£650
Travel grant, International Perimetric Society (IPS) for attendance at IPS 2008, Nara, JapanUS$900

Current postgraduate students (with anticipated completion year)

Previous postgraduate students (with completion year)

Research collaborators

  • Padraig Mulholland, Moorfields Eye Hospital, London / Ulster University, Coleraine
  • Krishna D Singh, Cardiff University Brain Research Imaging Centre (CUBRIC)
  • Simon K Rushton, School of Psychology, Cardiff University
  • Roger S Anderson, Ulster University, Coleraine / Moorfields Eye Hospital, London / UCL Institute of Ophthalmology, London
  • David F Garway-Heath, Moorfields Eye Hospital & UCL Institute of Ophthalmology
  • Ryo Asaoka, University of Tokyo Graduate School of Medicine